Pen



M. G. SYPHER Aug. 10, 1937.

PEN

Filed May 6, i935 v sNvENT R /Vz/ aff/qyJy/b/zow MYM l 4m ATTORNEY '46 pen.

Patented Aug. 10, 1937 UNITEDv STATES lPATENT oFFicE PEN i Application May s, 1935, serial No. 19,910

11 Claims.

cost of gold by decreasing the thickness of the metal have not been successful because pen nibs made of thin metal were too flexible and the writing pointsV thereof were readily damaged. Pens made of base metal and gold plated are undesirable because the gold readily wears off suhjecting the nib to corrosion and because base metals do not have the proper resilience necessary forfountain pen nibs. Another diiiiculty in fountain pens is that pen nibs frequently may 20 be improperly mounted or adjusted on the ink feed bar. Also, duringthe use of the pen or while cleaning it, the nib may be accidentally rotated or moved longitudinally with respect to the feed bar, thus impairing the feeding of ink to the pen point. As a result, the pen will not function properly and the user of the pen will be dissatisfied.

The presentinvention aims to overcome the above difllculties by providing a pen nib for-a. fountain pen which may be made of material of reduced thickness to save an appreciable amount of gold or other precious metal, but which is as serviceable and durable as pens made of thicker material. The present invention further aims to provide an inexpensive pen` nib adapted to be held securely in operative position. on the feed bar of the fountain pen to prevent accidental rotational or longitudinal movement of the pen with respect to the feed bar during the use of the An object of the present invention is to reduce the cost of pen nibs for fountain pens and the j like. y

' Anothervobjectpf the invention is to decrease Y the amount of gold or other vprecious metal required for pen nibs.` Y Another object of the invention is to provide a durable and serviceablepen'nib madeof relatively thin material.

50 Another object of the invention is to provide' -a reinforced pen nib for fountain pens and the like. r

Another object of the invention is to provide a pen nib which is readily assembled and at- 55 tached to the feed bar of the fountain pen.

Another object of the invention is to provide K 'a pen nib which cooperates with the feed bar to prevent accidental rotational -or longitudinal .movement with respect to the feed bar. 50 Another object of the invention is to provide (Cl. 1Z0-51) a reinforced pen nib of thin material adapted to be maintained in adjusted position on the feed bar.

A further object of the invention is to provide' a simple inexpensive pen nib and feed bar for 5 accomplishing the above advantageous results.

Other and further objects of the invention will 'be obvious upon an understanding of the illustrative embodiment about to be described. or will be indicated in the appended claims, and 10 various advantages not referred to herein will occur to one skilled in the art upon employment of the invention in practice.

A preferred embodiment of the invention has been chosen for purposes of illustration and description andY is shown in the accompanying drawing, forming a, part of the speciflcation,

wherein Fig. 1 is a fragmentary elevational view, partly in section, illustrating a preferred embodiment of the invention; l

Fig. 2 is an elevational view showing the underside of a feed bar having a pen nib mounted thereon; i

' Fig. 3 is a sectional view taken along the line 3A of Fig. 2;

Fig. 4 is an elevational view showing the underside of the feed bar with the pen nib ,removed therefrom; v

Fig. 5 is a sectional view illustrating another embodiment of the invention;

Fig. 6 is a sectional View illustrating still another embodiment of the invention; and Fig. 7 is-a fragmentary elevational view illustrating aV further modification of the invention.

Referring again to the drawing and more particularly to Figs. 1, 2, 3 and 4, there is shown a fountain pen comprising a barrel I anda pen section 2 threaded or otherwise secured to the lower end of the barrel. The pen section may be provided with a tubular extension or nipple 4 for attaching an ink sac or reservoir 5 to the pen section and any suitable'operating device (not shown) may be utilized for filling the ink sac or reservoir, for example, the mechanism shown in the patent to Upton, No. 1,580,093 granted, April 6, 1926.

The pen section is provided with a substantially cylindrical radial bore or aperture 6 extending longitudinally therethrough for mounting a feed vbar 1' adapted to feed the ink from the sac to a pen nib 0 mounted adjacent to the feed bar. The feed bar may be substantially cylindrical at its upper end I0 and is fitted into the bore or aperture 6 to frlctionally hold the upper end ofthe pen nib in the pen section.. The lower end of the feed barv preferably is provided with an arcuate or semi-cylindrical upper surface Il adapted to receive the body of the pen while the underside is provided with asubstantial flat portion I2 hav- 60 ing a groove or recess I3 at each side for sec-uring portions of the pen nib. The free end of the feed bar is'provided with a rounded tip portion I4 adapted to substantially conform to the writing 5 point of the fountain pen nib. In order to feed ink to the nib and to ll the pen, the upper surl. face of the feed bar may be provided with a groove I5 or a series of capillary grooves extending substantially from the upper end I0 inserted into the bore 6 of thepen section 2 to the tip I4. Preferably pen nibs are made of gold to resist the corrosive action of chemicals in' the Writing ink. It will, of course, be understood that the term gold used herein exemplifies a gold alloy, for example, fourteen carat gold which lcomprises fourteen parts pure gold and ten parts base metal; Heretofore, it has been necessary for the metal used for pen nibs to be of sufficient thickness so that the point would not be too soft for writing and would not be readily damaged. Also, the metal was required to be sturdy', otherwise the pen nib would move away from the feed bar when pressure .was applied to the pen nib during writing and hence, ink was not properly fed thereto. The present inventionmeets all these requirements and at the same time permits a relatively thinner material to be used for the pen nib to reduce the cost of gold or other precious metal required.

In order to accomplish these advantages the pen nib 9 comprises an arcuate ror bow-shapedA body-portion I3 having a writing point 20 at the lower endand a portion 2l of reduced width at.

the upper end adapted to t between the inner- 5- walls of the pen section bore 6 and the cylindrical portion I! of the feed bar to hold the pen nib in place. 'Ihe body portion I9 has suitable sides 22 each provided at their lower end substantially adjacent to the writing point 20 with a flange, 40 tab or wing portion 2l which extend transversely toward each other. 'I'hese flanges preferably are bent inwardly so that they fit into the grooves or recesses I3 at thefunderside of the feed .bar to hold the pen nib in engagement with the feed bar. In this manner the pen nib cannot be moved away from the feed bar when writing pressure is applied. At the same time the pen point is reinforced and also held in place on the feed bar whereby the nib may be made of relatively thinner material to save in the cost of gold. An-

other feature of the flanges is that they are pro-V A vided substantially adjacent to the pen point where the greatest pressure is applied during writing which tends to separate the pen point and feed bar. Preferably the flanges are substantiallyonly one-'half the length of the side portions whereby a saving of material is eifectedi Furthermore, they do not stiifen the pen nib at its upper end and do not interfere with its insertion into the pen section. i f

The present invention also contemplates overcoming other -diillculties heretofore experienced without increasing the cos of the fountain pen. Frequently, during the use of the pen or while cleaning the pen, forces are applied tending to rotate the pen nib with respect to the feed bar thus moving the pen point out of alignment with the ink feeding groovel I5. Since the body portion of the pen nib lies in conformity with the upper surface II oi' the feed bar and the flanges extend into the grooves I3 at the underside I2 of the feed bar, the nib is securely held against accidental rotational movement. These adlresults may also be attained by' using vantageous the improved pen nib with existing feed bars so that the present inventionl maybe applied to both new and 01d penswithout additional cost. The grooves also prevent.'l the nib from moving longitudinally upwardly with respect to the feed bar since the upper end'of each groove is provided with a stop face 23 which is engaged by the upper ends of the flanges. Another advantage of the present invention is that pen nibs may be assembled on the feed bars prior to inserting them into` the pen section, and an assortment of pen nibs of various styles may be shipped to the dealer. 'I'he purchasers can then select the style of nib'suitable to their handwriting and the dealer then inserts the combined pen and feed bar into the pensection. Since the'nib is reinforced by being in engagement with the feed bar, theA nib may be frequently removed and inserted without damage thereto. Unskilled persons may insert the pen and position it properly in all cases. This is also advantageous in the event that the style originally zselected by Ithe customer is unsatisfactory.

VIn Fig. 5 another embodiment of the invention is shown wherein the underside of the feed Ibar is provided with a longitudinally extending recess tabs 21 are bent inwardly and upwardly at an angle towards the arcuate underside of the body portion of the nib. Preferably, the anges are resilient and engage the at underside .I2 of the" feed bar at their free ends so that the nib may yield slightly and move away from the feed bar when writing pressure is applied. ,Due to the resiliency of the flanges 21, thev nib is always pulled back to the feed bar when writing pressure is released. Also, -the resilient tabs permit slight separation of the feed bar and nib to induce the iiow'and feeding of ink to the point. 'Ihis form of pen nib is adapted to be used particularly with existing forms of feed bars.

Fig. 7 illustrates still another embodiment of the'invention wherein the feed bar is provided with comb-like members 23 at the sides spaced having suitable projections, indentations, bumps or corrugations 3| adapted to register with certain of the recesses 23 at the sides of the feed bar. I These projections when in engagement with the recesses between the teeth prevent longitudinal movement of the pen nib to hold the l,pen point in proper relation with respect to the ink feeding groove I5. vIt will, of course, be understood that any number of projections may be provided. Preferably, at least one projection is formed on each of the anges. Where more than one projection is utilized, they preferably are spaced to correspond to the distance the recesses 28 art spaced.

It will be seenthat the present invention provides a simple inexpensive pen feed whichmay be readily manufactured and having a pen nib adapted to cooperate with the feed bar of the fountain pen. The pen nib is reinforced to permit thinner material to be used thereby reducingl the c ostcf gold or otherpreciousmetalrequired. At'the same time.the pen nibis securely held in place against movement with rcspecttothefeedbarandmaybeassembledat the factory." The pen may be used indefinitely without danger of the nib getting out of adjustment, thus eliminating dissatisfaction on the part of the user and the expense of frequent repairs vor adjustments. The pen nibs are rugged in construction and can withstand the rough usage to which they may be subjected. Y

As various changes may be made in the form.. construction and arrangement of the parts herein without departing from the spirit and scope of the invention and without sacrificing any of its advantages, it is-to be understood that all matter herein is to be`interpreted`as illustrative and not in av limiting sense.

Having thus described my invention I claim:

1. A pen nib for fountain pens and the like comprising van arcuatejbody portion having sideportions adapted to ne against the sides of a rood bar,'andV a substantially flat elongated resilient flange at each respective side portion substantially adjacent to point and extending ytransversely therefrom to engage the underside ofthe feed bar. f

2. A pen nibV for fountain pens and the` like comprisingan arcuate body portion having side portions adapted to lie against the sides of a feed bar, a writing point at one end of said body portion; and a relatively wide flange at each respective side portion and extending transversely therefrom to engage the-underside of the feed bar, said flanges Vbeing substantially half as long as said side portion and being substantially adjacent said wrlting point to reinforce said point without increasing the amount of 40 material required for said pen nib.

3. In a fountain peul and the like the combination of a feed bar having an arcuate upper surface and a substantially flat portion on the underside thereof,vand a peli nib conforming substantially to the upper of said feed bar and lying in contact therewith, said pen nib having la. writing point at one .epd and a substantially Vflat resilient flange at eah ofthe respective sides thereof adapted'to engage the flat portion'on theV 50 underside of said feed fbar. said flanges being substantially adjacent tothe writing point and exftendir along the sidesofrsaidpen nibfor only a portion thereof to the amount of material required for said pen nib. Y

4. In a fountain peg d the like. the combination of a feed .bar haring an ink feeding groove therein and a pair offrecesscs on the underside substantially at the fgrward end thereof, and a. pen nib having a writing point adapted to re' ceive ink from'the groove and having "tially adjacent the writing apairoftabssubstap point extending towards each other and fitting .into said recesses to assemblesaid penA nib and feed bar and prevent aceidental'rnove ment of said pennib with respect to saidfeed bar. Y 5, In a fountain pen andthe like thecombination of a feed .bar having apairv o f lengt-fV tudin'ally extending recesses ou the undersidethereof. said lrecesses being formed at substanmuy the lforward ond ofthe food bnr, son recess having a stop face at its upper end, and

a pen nib mounted on said feed bar having,

flanges at the sides thereof fitting into said recesses. the upper ends of said anges abutting against the stop faces to prevent accidental movement between said pen nib and feed bar.

6. A feed bar for.a fountain pen and the like,

' comprising a portionl adapted to form a support pen nib with respect to the feed bar when placed thereon.

'1. A pen nib for fountain pens and the like y comprising a body portion adapted to fit over a feed bar, a fiange at each side of said body portion, said flanges extending towards eachv other and being adapted to extend beneath the underside of'the feed bar to prevent relative.

rotational movement between the pen nib and the feed bar, and an upwardly extending projectionon each of said flanges adapted to prevent rela.- tive longitudinal movement between the pen nib and the feed bar.

- 8. In a' fountain pen and the like, the combination of-a feed bar having' a plurality of indentations on the underside thereof, and a pen nib having a ange at each side thereof Vextending beneath said feed bar, said flanges having a plurality of projections therein adapted to register with certain of said indentations in said feed bar.

9. In a fountain pen and the like, the combination of a feed bar, and a pen nib having an arcuate body portion provided with side portions adapted to lie against the. sidesI of the feed bar and having a substantially nat elongated resilient flange at each respective side portion substantially adjacent to the writing point of said Vnib and extending lengthwise along said side 'portion for only a portion of said side portions, said flanges extending under and engaging thel underside of said feed bar.

1o. a pen nib for fountain pons and the like;

comprising a writing point, a curved body portion having side portions adapted to lie against the sides of a feed bar, a resilient ange at each side portion and adjacent to the writing point. said flanges extending transversely toward each other, and anupwardly extending elongated por- -tion oneach of said flanges adapted to engage the underside of the feed bar.

11. Ina fountain pen and the are, the comelnation of a feed bar and a longitudinally extending recess at each side of said feed bar on the 'underside and substantially at the forward end thereof, and 'a pen nib Ahaving a writing point and having a tab at-- each side thereof' substantially adjacent tothe writing point, said tabs extending inwardly towards eachother and vfitting intosaid recessesto' assemble said pen nib and feed bar and prevent accidental movement of said pen nib with .respect to said feed MIIIFORD GUY'SYPHER.. 

